Improvement in steam-radiators



A. P. PITKINS.

Steam Radiator.

Patented June 12, 1860.l

?77 esses N. PETERS. Fnela-Lhhugmpher, washingmn. u. t;

UNITEDV STATES' PATENT OFFICE.

A. P. PITKIN, OF HARTFORD, CONNECTICUT.

IMPROVEMENT IN STEAM-RADIATORS.

Specification forming part of Letters Patent No. 25,66, dated June12,1860.

To all whom it may concern:

Be it known that I, A. P. PITKIN, of Hartford, county of Hartford, andState of Connecticut, have invented certain new and useful Improvementsin Steam-Radiators; and I do hereby declare that the same is describedand represented in the following specification and drawing.

To enable others skilled in the art to make and use my improvement, Iwill proceed to describe its construction and operation, referring tothe drawing, in which the same letters indicate like parts.

The nature of this improvement in steamradiators consists in making aperpendicular radiator of one piece of metal with the two sides cast ormade together, having intermediate connections to support theplates-rst, to prevent the bursting of the radiator from unequalexpansion or from an overpressure of steam or water; secondly, assupports to prevent giving in or collapsing when Vbeing bolted togetherin clusters with the steam, water, and air passages on the sides or atright angles with the edge of the radiators, and so arranged when boltedtogether in clusters as to bring the edges of the radiators toward thecenter of the chamber or apartment to be heated for the purpose ofallowing a better circulation of air between the radiators; and,further, the contracting of the bottom part of the radiator, first, toallow of the better circulation of air between the radiators; second,for the better strengthening of the radiator, and, third, for thepurpose of forming a good conductor for the condensed steam or waterinto the feed-pipe.

In the accompanying drawing the ligure shows detail views of the rst andmost important part of my invention.

A is a perpendicular edge View of a cluster of tive radiators placedside by side constructed after the plan of the first and most importantpart of my invention.

B shows avertical sectional elevation thereof cut through the center, asshown by red lines in the top view C and side sectional elevations l) E.

a are the radiators, made of such length, breadth, and thickness as maybe desirable, with plain or molded edges, the side plates made plain,concave, convex, corrugated, or

other desirable form to give strength and effect in appearance, andhaving hubs or bosses c, with orifices 7L to hold them in their properposition and at suitable distance apart to allow a circulation of airbetween them, and through which a bolt CZ (made of a rod or tube)passes, having nuts e or their equivalent on the end thereof, by whichthey are held firmly together.

f are intermediate supports made or formed in the castings to preventgiving in or collapsing, (and in number more or less, as desirable.)

g is the base on the lower end of the radiators, contracted so as toform a channel in line with the orifice 7L for the condensed steam orwater, and a hub or boss c, of solid iron, at least one-half of its (thehub or boss) diameter in the direction of the tube or rodbolt CZ, toprevent breaking by the expansion or strain of the bolts CZ.

t' represents an air cock or valve, or its equivalent, by which the airmay be allowed to escape from the radiators.

7c is a T-coupling, having an inside iiange 01 ears to receive a nut Z,into which one end of the bolt d is screwed, by means of which it andthe radiators are secured together. Said coupling is made with anorifice corresponding with the oriiceh, and a iange or screw to receivethe steam-feed pipe.

The advantages to be derived from this improvement over others no w inuse are believed to be as follows:

First. The cheapness of construction, each radiator being made whole,without seam or joint.

Second. Its compactness, as it allows of the greatest amount ofradiating-surface in a given space of any radiator now in use.

Third, Its simplicity, as each and every radiator are alike, and willlit in' any place in the cluster without regard to the ends.

Fourth. Its multiplicity, as it may be car ried to any extent (howeverlarge the apartment to be heated) by simply adding more radiators.

Fifth. The readiness with which -the recesses are supplied with air tobe heated.

I have thus endeavored to describe the nature, construction, andadvantages to be derived by the use of this improvement so as to enablea skilled mechanic to make and use the same.

Vhat I claim, therefore, and desire to secure by Letters Patent, is-

Makng a perpendicular radiator a with the inside connections f andcontracted at the bottom, forming the steam, Water, and air passages atright angles with the sides, substantially in the manner as and for thepurpose described.

A. P. PITKIN. W'itnesses:

EDWARD W. Buss, JEREMY WV. BLISS.

